液相色谱质谱联用法同时测定谷物中3种真菌毒素方法的优化

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Optimization of the Method for Simultaneous Determination of Three Mycotoxins in Cereals by Liquid ChromatographyMass Spectrometry

LU Feng （Liaoning Provincial Food and Materials Reserve Affairs Service Center （Liaoning Provincial Grain Inspection and Testing Center）， Shenyang 110033， China）

Abstract： In this study， a method for simultaneous determination of mycotoxins in major cereals by liquid chromatography-mass spectrometry was optimized.This method can achieve complete separation of three mycotoxins， aflatoxin B1， deoxynivalenol， and zearalenone，within 25min . The spike recovery rate was increased by more than 2% while maintaining analytical precision （relative standard deviation of 0.036% to 0.089% ）and correlation coeficient greater than O.999.This method has high accuracy and sensitivity while ensuring analysis speed， and is highly practical for the determination of mycotoxins in cereals.

Keywords： cereals; mycotoxins; liquid chromatography-massspectrometry; method optimization

谷物作为人们饮食中的重要组成部分，其安全性和质量直接关系到人们的健康。（剩余3690字）